Удаление из файла строки

case 3:
        {
                  Computer computer;
                  for (int i = 0; i < NumberOfComputers; i++)
                  {
                      Delete(&computer, NumberOfComputers);
                  }
                  system("PAUSE");
                  break;
        }
 
 
void Delete(Computer *pcomputer, int NumberOfComputers)
{
    ifstream file;
    file.open("computers.dat", ios::binary);
    if (!file) cout << " ERROR! " << endl;
    else
    {
        file.seekg(0, ios::end);
        int size = file.tellg();
        size = size / sizeof(Computer);
        file.seekg(0, ios::beg);
        Computer *computers = new Computer[size];
        file.read((char*)computers, sizeof(Computer)*size);
        file.close();
        cout << endl << "+-----------------------------+-----------------------+-----------------------+\n"
            "|       TYPE Of Computer      |    YEAR Of Release    |   PRICE Of Computer   |\n"
            "+-----------------------------+-----------------------+-----------------------+\n";
        for (int i = 0; i < size; i++)
            Print(computers[i]);
 
        unsigned int RemoveComputer;
        int NumberCopy;
        NumberCopy = NumberOfComputers;
        cout << "Enter YEAR of the computer which you want to REMOVE: ";
        cin >> RemoveComputer;
        while (RemoveComputer > 2016 || RemoveComputer < 1900)
        {
            cout << endl << "Entered incorrect value. YEAR cant be more than 2016 and less than 1900." << endl;
            cout << "Enter YEAR of the computer what you want to REMOVE: ";
            cin >> RemoveComputer;
        }
        for (int i = 0; i < NumberOfComputers; i++)
        if (RemoveComputer == pcomputer->YearOfRelease)
        {
            for (int j = i; j < NumberCopy - 1; j++)
                pcomputer[j] = pcomputer[j + 1];
            NumberOfComputers--;
            i = -1;
        }
        if (NumberCopy == NumberOfComputers)
            cout << endl << "The computer with this YEAR doesn't exist." << endl;
        else
            cout << endl << "Computers with " << RemoveComputer << " YEAR are REMOVED. In total REMOVED: " << NumberCopy - NumberOfComputers << " computers." << endl;
        
    }
}